I have two pcduinos v2. Both are working absolutely fine with my private wifi at home.
No I used both with a different wifi (where I dont have access to) and it showed that at one (only one) of the two pcduinos the signal strength bounces between 0% and 100% constantly. Its going up, its going down.
One second it's 0% , 5sec later ist 62% and one second later 100% , then 5sec later again 0%.
This is not happening with the second pcduino.